baber/WOPTO huggingface dataset:
Patent CA-2067844-A1 (CA)
Title: Process for bleaching cellulosic material and plant for carrying out the process
Inventor: SINNER MICHAEL
IPC: D21C9/153
Filed: 1992-05-01
Abstract: ABSTRACT OF THE DISCLOSURE:            There is disclosed a process and a plant for bleaching cellulosic materials  using  ozone.  An  ozonic gas  is produced in an ozone generator by corona in air or oxygen.  The ozonic gas is compressed and an aqueous solution  enriched  with  oxygen  (strong  water)  is recovered in an absorption vessel under pressure. The strong water is depressurized in a depressurizing zone, thus releasing a gas having a high O3 content (strong gas. The strong gas is diluted with an ozone-free or oxygen-poor gas.  The gas obtained is mixed with the cellulosic materials to be bleached and is reacted in a bleaching  zone.  The material  suspension  bleached  is degassed, the solid material is washed and processed.
Patent CA-2069352-A1 (CA)
Title: Method of preparing .alpha.-l-aspartyl-l-phenylalaline methyl ester hydrochloride
Inventor: KATO TOSHIHISA
IPC: C07K1/02
Filed: 1992-05-25
Abstract: .alpha.-L-Aspartyl-L-phenylalanine  methyl  ester hydrochloride is prepared by extracting N-formyl-.alpha.-L-aspartyl-L-phenylalanine methyl ester from a reaction mixture containing same in an organic solvent, with water at a temperature of from 40°C to 80°C,  and allowing the resulting mixture to separate into an aqueous layer and an organic layer,  the aqueous   layer   containing   the   N-formyl-.alpha.-L-aspartyl-L-phenylalanine methyl ester. The aqueous layer is isolated and the   N-formyl-a-L-aspartyl-L-phenylalanine   methyl   ester contained therein is deformylated at a temperature of from 40°C to 80°C.  .alpha.-L-Aspartyl-L-phenylalanine methyl ester is thereafter crystallized out in the form of its hydro-chloride salt. The method of the invention does not necessitate the isolation  of  an  intermediate  by  solid-liquid  separation during   the   course   of   preparing   the   .alpha.-L-aspartyl-L-phenylalanine methyl ester hydrochloride.
Patent CA-2070704-A1 (CA)
Title: Procede de realisation par fibrage d'une fibre supraconductrice a haute temperature critique et fibre obtenue par ce procede
Inventor: BOBO JEAN-CLAUDE
IPC: C01G1/00
Filed: 1992-06-08
Abstract: Procédé de réalisation par fibrage d'une fibre supraconductrice à haute température critique en un matériau de la famille Bix Pby Sr2 Ca2 Cu3 Oz avec 1,9 ? x+y ? 2,3, procédé selon lequel on réalise une préforme, un fibrage et un recuit sous air de la fibre obtenue, et caractérisé par le fait que ladite préforme est constituée d'un bloc (1) en matériau vitreux de formule Bix Pby Sr2 Ca2 Cu3 Oz avec 1,9 ? x+y ? 2,3 et d'un tube (2) entourant ledit bloc en un matériau vitreux de formule Bix, Sr2 Ca1 Cu2 Oz, avec 1,5 ? x' ? 2,2.
Patent CA-2074847-A1 (CA)
Inventor: MEYN CORNELIS
IPC: A22C21/06
Filed: 1992-07-29
Abstract: In accordance with the invention a method is provided in which entrails, which have been removed from the abdominal ca-vity of birds, in a from the poultry separated manner are moved synchronously with the birds for a veterinary inspection. The ap-paratus according to the invention comprises a conveyor for in a from the poultry separated manner and along part of its track con-veying the entrails synchronously with the poultry. An embodiment of such a conveyor comprises an endless conveyor, such as a chain conveyor, comprising a number of transportation means for recei-ving the respective entrails packages.
Patent CA-2077161-A1 (CA)
Title: Method of establishing soldered connections
Inventor: FITZGERALD THOMAS W
IPC: H01S5/02
Filed: 1992-08-28
Abstract: METHOD OF ESTABLISHING SOLDERED CONNECTIONS            Abstract A method of connecting a component with regions of selective metallization to a reference surface comprises the steps of forming a desired pattern of wettable metal pads on the reference surface, depositing solder on each of the pads, and rigidly positioning the component on the reference surface.  When the solder is heated, each of the solder patterns reflows and contacts a respective region of metallization on the component without movement of either the component or the reference surface.
Patent CA-2079559-A1 (CA)
Inventor: BOULA GERARD
IPC: F22B37/00
Filed: 1992-09-30
Abstract: DESCRIPTIVE ABSTRACT          To permit an individual identification of each of the tubes (10) of a steam generator, it is proposed that these tubes be marked with the aid of a binary bar code (12a) formed from circular impres-sions (24) and the absence of impressions.  The impressions, formed without material removal, make it possible to read the bar code with the aid of an eddy current probe.  The impressions (24) can be made on the exterior of the tubes (10) during their manufacture, or on the interior of the tubes after they have been fixed to the tube plate (16).  A learning process then makes it possible to allocate to each bar code a given position on the tube plate. (fig. 3)
Patent CA-2080206-A1 (CA)
Inventor: MARSAN NORMAND
IPC: B65F1/08
Filed: 1992-10-08
Abstract: A compartmented waste receptacle for segregating unrecyclable trash and recyclable paper.  The receptacle has a main body and a secondary body releasably fixed to the main body.     A spacing between the bottom walls of the secondary body and the main body defines a volume in which the recyclable paper is stored. A spacing between the secondary body and main body front walls define a chute leading to the recyclable paper storage volume. The main body and secondary body are adapted to be emptied independently.
Patent CA-2080244-A1 (CA)
Title: Flat plate antenna
Inventor: POULTON GEOFFREY T
IPC: H01Q13/20
Filed: 1991-04-29
Abstract: A flat plate transmit/receive antenna (1) is disclosed having first and second parallel plate waveguides (2, 3). A waveguide bend (4) communicates energy between the waveguides (2, 3) to enable transmission and reception from an exposed plate (5) of the second waveguide (3) within which an array of apertures (6) is formed.  A coupler or probe (8) is provided at a focus of the first waveguide (2) to cause, on transmission, a cylindrical phase front to propagate along the first waveguide (2) which is converted by the waveguide bend (4) to a planar phase front in the second waveguide (3). Scanning and dual polarisation embodiments are also disclosed.
Patent CA-2080461-A1 (CA)
Title: Shunt coil controlled transformer
Inventor: HUTCHISON RICHARD M
IPC: H02M5/12
Filed: 1992-02-24
Abstract: A transformer (100) having a shunt magnetic path (108A) and a shunt coil (108) is provided. The transformer (100) includes control circuitry to control the output of the transformer by controlling current flow in the shunt coil (108), thereby controlling the flux through the shunt magnetic path (108A) and the flux coupling with the secondary coil (106). The current in the shunt coil (108) is phase-controlled and power for the control circuitry is derived from the current induced in the shunt coil (108).
Patent CA-2085493-A1 (CA)
Title: Polyvinyl chloride compositions having high surface tension
Inventor: MERTZEL ELAINE A
IPC: C09J127/04
Filed: 1992-12-16
Abstract: ABSTRACT OF THE INVENTION    The subject invention relates to polyvinyl chloride compositions having high surface tension.  These compositions comprise polyvinyl chloride resin and a silica.  These compositions are essentially free of low molecular weight lubricants.
Patent CA-2087966-A1 (CA)
Title: Reusable test unit for simulating electrochemical sensor signals for quality assurance of portable blood analyzer instruments
Inventor: ZELIN MICHAEL P
IPC: G01N33/487
Filed: 1991-07-19
Abstract: A reusable test unit (510) is disclosed for testing the functionality of a portable blood ana-lyzer, and particularly the interface between the high-impedance electrochemical sensors and the instrument. Signals are generated to simulate am-perometric, conductimetric, and potentiometric (401) sensors. Circuitry permits detection and dis-crimination between failures from damaged CMOS amplifiers (303) and failures from leakage currents (313) in contaminated connectors. The test unit may be configured to be insertable into the instrument to fit mechanically in the same fashion as a disposable sensor device. A scheme for three-dimensional routing of guard lines on circuit board (850) is disclosed for guarding against coupling between closely spaced traces and connector pads.
Patent CA-2090321-A1 (CA)
Title: Therapeutically useful 2-aminotetralin derivatives
Inventor: HAADSMA SUSANNE R
IPC: A61P15/00
Filed: 1991-09-26
Abstract: This invention is therapeutically useful 2-aminotetralins and pharmaceutically acceptable acid addition salts thereof of for-mula (I), wherein R is hydrogen or halogen, wherein R1 is hydrogen, OR4, SR4, CONR5R6, CN, het, C(O)het, CF3, SO2NR5R6, 5-oxazolyl, CSNR5R6, OSO2CF3, wherein R2 and R3 are independently hydrogen, alkyl, alkenyl, alkynyl, (CH2)m-cycloalkyl; (CH2)m-cycloalkenyl, (CH2)m-aryl, (CH2)m-CO2R4, (CH2)m-OR4, wherein R4, R5 and R6 are independ-ently hydrogen, alkyl, alkenyl, cycloalkyl, and wherein X is (CH2)n, m = 0-4, n = 4-8, p = 0,1. These compounds are use-ful to treat central nervous system disorders, hypertension, diabetes, sexual impotency and to control appetite.
Patent CA-2090848-A1 (CA)
Title: Stabilized Peroxide Gels Containing Fluoride
Inventor: WILLIAMS DAVID R
IPC: A61K33/24
Filed: 1993-03-02
Abstract: An oral composition is provided that includes a peroxygen compound such as hydrogen peroxide, a fluoride-containing anticaries agent and a tin compound, especially stannous chloride. The tin compound stabilizes the peroxygen compound against decomposition that ordinarily would be induced by the presence of fluoride.
Patent CA-2091815-A1 (CA)
Title: Variable length code word decoder for use in digital communication systems
Inventor: POLLMANN STEPHEN C
IPC: H03M7/40
Filed: 1993-03-17
Abstract: Apparatus (10) is provided for decoding variable length code words to recover transform coefficients, such as DCT transform coefficients provided by a high definition television encoder. A first category of the code words has a length of no more than n bits. A second category has a length of greater than n bits. A feedback ROM (22) is used to decode the code words. Code words from the first category are processed by directly addressing a lookup table (80) in the ROM (22). Code wards from the second category are processed using multiple passes through the ROM (22), wherein a portion of the data output during a prior pass is fed back (90) to address the memory during a subsequent pass.
Patent CA-2093603-A1 (CA)
Title: Automatic swimming pool chlorinator
Inventor: MOINI SIAMAK
IPC: B01F1/00
Filed: 1993-04-07
Abstract: An automatic swimming pool chlorinator having a submersible canister for receiving and containing chlorine tablets or sticks. The canister, at its upper end, is provided with a separable lid which includes: a principal water flow conduit through which pool water is recirculated by suction to the pool's water filter and heater system or returned to the pool via a water return line; a multiplicity of small ports for admitting relatively small quantities of pool water to the canister to dissolve the chlorine therein over a period of time; a chlorinated water flow channel leading from the canister to the principal water flow conduit and through which chlorinated pool water is aspirated from the canister, and is mixed with, the flow of recirculated pool water in the principal water flow conduit; and a water flaw controller located within the chlorinated water flow channel to control the amount of chlorinated water aspirated from the canister and through such channel by the pool water being recirculated through the principal water flow conduit to the pool's filter and heater system.      The chlorinator may be mounted between sections of the water suction hose line leading from a pool cleaner unit to a pool skimmer. Alternatively, the chlorinator may be mounted at one end of its principal water flow conduit directly to a water recirculation return line at the side of the pool.
Patent CA-2096245-A1 (CA)
Title: Mounting arrangements for high voltage/high power semiconductors
Inventor: RADACK STEPHEN T JR
IPC: H01L23/40
Filed: 1992-07-24
Abstract: A mounting arrangement for a pair of relatively high voltage, press-pack semiconductors (14) positioned in spaced apart relationship on a support surface of a heat sink (12) comprises an enclosure (10) formed of electrically insulative material having a mounting surface for mating with the heat sink support surface. The arrangement has a pair of spaced openings (18) extending through the mounting surface, each of which is configured for relatively accurately positioning a respective one of the semiconductors. A  groove circumscribes each opening with a third groove spaced from and circumscribing the pair of grooves (26, 28) on the mounting surface. An O-ring (30A, 30B) in each groove defines an area (32) between the grooves isolated from environmental contaminants when the enclosure is clamped to the heat sink. An electrically conductive mounting plate (34) is positioned in each opening and electrically insulated from the heat sink but electrically connected to a respective semiconductor. A relative stiff spring bar (46) extends between the semiconductors with opposite ends of the bar supported upon a respective one of the semiconductors. The heat sink and the bar are coupled for tensioning the bar toward the heat sink for compressing the semiconductors between ends of the bar and the heat sink. The tensioning device comprises a bolt (50) extending through an aperture in the heat sink, the enclosure mounting surface, and the bar between the semiconductors. Another groove circumscribes the aperture in the enclosure mounting surface and an O-ring positioned therein for environmentally isolating the aperture from the area between the grooves when the enclosure is affixed to the heat sink.
Patent CA-2099489-A1 (CA)
Inventor: KUJAWA KIM
IPC: H04M11/00
Filed: 1991-12-24
Abstract: Disclosed is a system that provides a ubiquitous telemetry or data network utilizing existing telephone outside plant comprising twisted pair copper without adversely impacting or otherwise affecting the plain old telephone service provided on the existing outside plant of a telephone system.
Patent CA-2099536-A1 (CA)
Title: Detachable headrest for aircraft
Inventor: PRATT CHARLES W
IPC: A47C7/38
Filed: 1993-07-02
Abstract: DETACHABLE HEADREST FOR AIRCRAFT        Abstract of the Disclosure A detachable headrest (10) for removable installation on a seat back (12) includes a frame (16) having a base member (18) for contacting the seat back and a collapsible, resilient upper member (20) projecting upwardly from the base member above the seat back. A cushion (22) is mounted on and supported by the upper member of the frame. Channel brackets (25) are secured to the underside of the base member and grip the top of the seat back. A flap (46) of fabric extends downwardly from the anterior face of the cushion and covers a portion of the seat back so that a person leaning against the flap secures the detachable headrest in position.     PRAr\7136AP.DOC
Patent CA-2100062-A1 (CA)
Title: Folding carton blank
Inventor: DEMAY KARL F
IPC: B65D5/54
Filed: 1992-11-24
Abstract: A blank for forming a carton is provided. The blank comprises top (5), rear (6), bottom (7), front (8) and cover (4) panels hingedly connected in the order named. End wall-forming flaps (4A-8B) are hingedly connected to bottom and top ends of the main panels.  An offset portion is formed in the rear panel and flaps. All score lines, offset portions, perforations and breakaway features are formed in the same direction with reference to the paper board stock.
Patent CA-2100650-A1 (CA)
Title: Heated ice door for dispenser
Inventor: SCHMIDT CHRISTOPHER G
IPC: F25C5/00
Filed: 1993-07-15
Abstract: HEATED ICE DOOR FOR DISPENSER                  Abstract of the Disclosure A closure is shown for use with an ice dispensing apparatus having an ice chute operatively associated with a discharge opening.  The closure includes a door case having a front wall of a size and shape corresponding to the opening and a rearwardly turned perimeter wall connected to the front wall and having an outwardly turned flange.   An insulation core is disposed within the perimeter wall rearwardly of the front wall.   A gasket engages the opening incident to the closure being in the closed position.  A rear wall is provided for substantially covering the opening incident to the closure being in the closed position.    A resistance heater is positioned in the door case between the front wall and the insulation to prevent sweating of the closure.
Patent CA-2101591-A1 (CA)
Inventor: SANCHEZ RICHARD R
IPC: A63B37/00
Filed: 1993-07-29
Abstract: A golf ball has dimples formed in its outer spherical surface and arranged in a geodesic pattern defined by a plurality of imaginary grid lines which divide the outer spherical surface into a truncated octahedron having six square regions and eight hexagonal regions.  Each hexagonal region is defined by six of the grid lines which form a spherical equilateral hexagon having six sides of equal length and three diagonals of equal length.  The dimples are arranged so that alternating sides of the hexagon each intersect at least two dimples, and each diagonal intersects at least seven dimples.  The golf ball has a total of 374 dimples including 126 dimples with a diameter of 0.145 inch, 200 dimples with a diameter of 0.165 inch, and 48 dimples with a diameter of 0.125 inch.  The 374 dimples cover 76.8% of the outer spherical surface of the golf ball.
Patent CA-2102284-A1 (CA)
Inventor: LANDES KLAUS
IPC: C23C4/134
Filed: 1993-11-02
Abstract: The plasma spray apparatus for spraying powdery material, particularly for the coating of the surface of a work piece, comprises an indirect plasmatron adapted to create an elongated plasma torch, having a central longitudinal axis and means for feeding the powdery material into the plasma torch.   The plasmatron comprises a cathode assembly having at least three cathode members evenly distributed along a circle around the central longitudinal axis of the plasmatron, an annular anode member located distantly from the cathode member and a plasma channel extending from the cathode assembly to the anode member.   The plasma channel is delimited by the annular anode member as well as by a plurality of annular neutrode members which are electrically insulated from each other, and the means for feeding the powdery material into the plasma torch are located close to the anode member.
Patent CA-2102810-A1 (CA)
Title: Fuel additive compositions containing poly(oxyalkylene) amines and polyalkyl hydroxyaromatics
Inventor: CHERPECK RICHARD E
IPC: C08F8/00
Filed: 1993-03-09
Abstract: A fuel additive composition comprising: a) a poly(oxyalkylene) amine having at least one basic nitrogen and a sufficient number of oxyalkylene units to render the poly(oxyalkylene) amine soluble in hydrocarbons boiling in the gasoline or diesel range; and b) a polyalkyl hydroxyaromatic compound or salt thereof wherein the polyalkyl group has sufficient molecular weight and carbon chain length to render the polyalkyl hydroxyaromatic compound soluble in hydrocarbons boiling in the gasoline or diesel range.
Patent CA-2102957-A1 (CA)
Title: Acoustic system and method for flow testing a deep well
Inventor: SCHULTZ ROGER S
IPC: E21B47/18
Filed: 1993-11-12
Abstract: Abstract of the Disclosure A system for flow testing an oil or gas well comprises acoustic transmission and reception devices for communicating preferably through at least 5,000 feet of an annular column of substantially static fluid which is susceptible to gelling which further attenuates the acoustic signals.   Coherent acoustic signal communication through such column controls a tester valve to perform a drill stem or production flow test.  A corresponding method is also disclosed.
Patent CA-2104443-A1 (CA)
Inventor: MURAKAMI SEIJI
IPC: H04N9/31
Filed: 1993-08-19
Abstract: A projection-type display apparatus having a lamp which emits a high intensity white light, two dichroic mirrors which filter out the three primary color beams from the white light and three liquid crystal  panels which,  respectively,  modulate the  color  beams according to the three color image signals.  Characteristics of the lamp and the dichroic mirrors are set so that the reproduction chromaticity range includes transmission chromaticity ranges of both the NTSC and HDTV systems.  The image signals are supplied to two types of linear matrix circuit which are, respectively, suited for  the  NTSC  and  HDTV  systems  in  order  to  correct  color reproduction errors.  The output of the linear matrix circuits are selected according to the system of the received television signal.          In addition,  a display white color temperature is set in the corrected image signals according to the system.  Thus, the image signals are supplied to a display device such that the colors of the image can be accurately reproduced.
Patent CA-2105943-A1 (CA)
Title: Information Display Device
Inventor: KALMYKOW TEODOR
IPC: G09F7/08
Filed: 1993-09-10
Abstract: An information display device wherein there is a base plate and information bearing face plates detachably mounted thereon by one or more spline elements that press-fit with formations on each of the opposing faces of the base and face plate.  End caps are optional as are also separator strips between face plates where there are a number of face plates mounted on one base plate.  Splines press-fit into grooves in each of the base plate and face plate.  In another embodiment the spline is U-shaped receiving therein a rib on one member and projecting into a groove formed between two ribs on the other of the two plates.
Patent CA-2106463-A1 (CA)
Title: Magnesium electrode
Inventor: HITI JOHN
IPC: G01N27/333
Filed: 1992-03-16
Abstract: A magnesium ion selective membrane (14) including, as a magnesium selective compound, a 1,10-phenanthroline. In some preferred embodiments each of the C atoms at positions 2-9 of the 1,10-phenanthroline is bonded, by the bond which does not participate in the fused ring structure, to an H. In other preferred embodiments each of the C atoms at positions 2 and 9 of the 1,10-phenanthroline is bonded, by the bond which does not participate in the fused ring structure, to an H, and each of the C atoms at positions 3-8 of the 1,10-phenanthroline is substituted at the bond which does not participate in the fused ring structure.
Patent CA-2109684-A1 (CA)
Inventor: PUBBEN PETER A
IPC: F16K31/385
Filed: 1993-11-22
Abstract: A faucet control device to provide asepsis and conservation of water consisting of a diaphragm valve block connected inline between the hot and cold water supply and faucet. Pilot hot and cold water pressure from said valve block is routed through three flexible conduit assemblies to a three-way valve remotely located to facilitate operation by knee, foot or elbow. The application of force to the three way valves cycles the diaphragm valve block from the closed to open position while preventing crossflow between the hot and cold water supplies.
Patent CA-2110158-A1 (CA)
Title: Vitamin d derivatives comprising a lateral chain expoxide group
Inventor: BOUILLON ROGER
IPC: A61K31/59
Filed: 1992-05-27
Abstract: (57) ?tract Compounds derived from vitamin D or one of its analogs having, in particular, a lateral chain grafted in position 17 on the D ring of vitamin D. Said compounds are characterized in that they include an epoxide group grafted on said lateral chain, the epoxide group being separated in position 17 by a linear chain of at least two atoms. The invention also concerns a process for the preparation of said compounds and their use as drugs.